AirHint found the following cheapest return flights from London (LHR) to Duesseldorf (DUS) in September 2025 (see full year).

Return flights

26 Sep - 29 Sep	Eurowings	direct
23 Sep - 26 Sep	Eurowings	direct
23 Sep - 29 Sep	Eurowings	direct
25 Sep - 29 Sep	Eurowings	direct
14 Sep - 29 Sep	Eurowings	direct
17 Sep - 24 Sep	Eurowings	direct
25 Sep - 01 Oct	Eurowings	direct
09 Sep - 16 Sep	Eurowings	direct
07 Sep - 10 Sep	Eurowings	direct
22 Sep - 24 Sep	Eurowings	direct
10 Sep - 23 Sep	Eurowings	direct
29 Sep - 01 Oct	Eurowings	direct
28 Sep - 01 Oct	Eurowings	direct
28 Sep - 19 Oct	Eurowings	direct
26 Sep - 06 Oct	Lufthansa
24 Sep - 24 Oct	SWISS
25 Sep - 11 Oct	Eurowings
27 Sep - 18 Oct	Eurowings	direct

Also check the deals for one-way flights from London to Duesseldorf in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from London to Duesseldorf in September from $116

Return flights